A Novel Technique to Reduce Contrast Exposure During Subclavian Interventions

Area of Science:

• Interventional Cardiology
• Nephrology
• Vascular Surgery

Background:

• Minimizing contrast media exposure is crucial, especially in patients with renal impairment or a history of contrast-induced nephropathy.
• Endovascular angiography requires contrast injection for visualization, posing risks for vulnerable patients.

Observation:

• A novel technique was employed during subclavian artery intervention in a patient with severe renal impairment.
• Transfemoral access was used, combined with a transradial sheathless-guiding catheter positioned in the axillary artery.
• The catheter aspirated the injected contrast/blood mixture directly from the downstream artery.

Findings:

• The implemented technique achieved an approximate 50% retrieval of the injected contrast media.
• This semiquantitative analysis demonstrates the efficacy of the contrast aspiration method.

Implications:

• This simple strategy for minimizing contrast exposure can be adapted for various endovascular procedures, including coronary, lower extremity, and carotid interventions.
• Utilizing contrast removal techniques from venous access points (coronary sinus, femoral, jugular) offers a promising approach for safer angiography.